Replacement for a Falcon 7X
My experience with Gulfstream is limited to the G200 and all I can say if the support is anything like we get then do not buy a G650 as it has truly been an eye opener just how bad it is.
2 caveats though, 1 the G200 is not a true Gulfstream and 2 this in Europe only so no idea how good it is in Savannah!